16" steels cover the brakes just fine but, you'd probably have to be careful with cast wheels. I think 17" would likely improve handling in this cars case. The short stiff sidewalls of big inch rims contribute to torque steer, making power application more difficult. Plus, you'd see improvements in wet -weather performance, tire to tire, with a higher profile 17". The only downside MIGHT be on billiard table smooth pavement where you might lose a touvh of steering precision and turn-in with the higher sidewall tire.